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Chapter 17 - Video
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1
What is the property by which phosphors continue to glow after being struck by an electron beam?
A)refresh rate
B)permanence
C)dot pitch
D)persistence
2
What happens to the color produced by a glowing phosphor as the intensity of the electron stream increases in a CRT monitor?
A)It gets brighter.
B)It gets darker.
C)It gets lighter.
D)It gets thinner.
3
What is identified by calculating the number of horizontal pixels times the number of vertical pixels in a monitor?
A)brightness
B)color
C)size
D)resolution
4
Which of the following is not applicable for LCDs?
A)They are thinner and lighter.
B)They do not emit potentially harmful radiation.
C)They flicker a lot.
D)They use much less power.
5
What unit measures the brightness of a monitor?
A)bits
B)pixels
C)mm
D)nits
6
What do LCD monitors use to provide brightness for the monitor?
A)bright light
B)cold cathode fluorescent lights
C)pixels
D)solar bulbs
7
What is the ratio of the darkest to the lightest spots in a monitor?
A)brightness
B)contrast
C)depth
D)pixel
8
How many watts does a typical CRT monitor consume?
A)100
B)200
C)120
D)240
9
What unit measures a monitor’s dot pitch?
A)bits
B)pixels
C)mm
D)nits
10
What is thin film transistor (TFT) also known as?
A)active matrix
B)dual scan matrix
C)dual scan passive matrix
D)passive matrix
11
What does DPMS stand for?
A)data power-management signaling
B)degauss power-management signaling
C)digital power-management signaling
D)display power-management signaling
12
How many bits of video RAM are needed to display an ASCII character?
A)4
B)8
C)12
D)16
13
What was the resolution of the earliest graphics cards?
A)100 × 50
B)115 × 100
C)320 × 200
D)210 × 400
14
What term identifies how many colors can be displayed on a screen?
A)color depth
B)pixels
C)megahertz
D)nits
15
3-D objects in a computer game are composed of a group of points. What are these points called?
A)pixels
B)dimension
C)triodes
D)vertices
16
What protocol supports direct access to the hardware for joysticks and other game controllers?
A)DirectCPU
B)DirectInput
C)DirectX
D)DirectY
17
What is the name of the special built-in circuit in a monitor that can be used to eliminate magnetic buildup?
A)degaussing coil
B)degaussing circuit
C)degaussing magnet
D)degaussing tube
18
Which of the following defines how closely the three colors can meet at a single point on a monitor’s display?
A)conference
B)coherence
C)congruence
D)convergence
19
When the red, green, and blue colors meet at a single point on a display, the colors combine. What will be seen at this point?
A)pixel
B)vertice
C)multiple pixel
D)single white dot
20
Which of the following symptoms is indicative of an insulation rupture on the flyback transformer of a monitor?
A)A single white dot on an otherwise black screen
B)Big color blotches
C)Bird-like chirping sounds
D)Hissing or sparking sounds
21
VGA devices can display a total of 262,000 colors. How many colors can they display at a time?
A)8
B)16
C)32
D)64
22
What does AGP stand for?
A)Accelerated Graphics Port
B)Active Graphics Port
C)Advanced Graphics Port
D)Application Graphics Port
23
What does a 3-D programming use to address standard video commands to the device driver?
A)AGI
B)AKI
C)API
D)ARI
24
In a 3-D world, what is a small picture that is tiled over and over again on walls, floors, and other surfaces?
A)dot
B)pixel
C)signal
D)texture
25
What unit measures a monitor’s bandwidth?
A)bits
B)pixels
C)megahertz
D)nits
26
What term describes how many times the electron gun in a CRT monitor can be turned on and off per second?
A)bandwidth
B)brightness
C)horizontal refresh rate
D)resolution
27
What controls the point of impact of an electron beam?
A)dot
B)pixel
C)texture
D)yoke





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